40172744 has 16 divisors (see below), whose sum is σ = 76101900. Its totient is φ = 19878912.

The previous prime is 40172701. The next prime is 40172749. The reversal of 40172744 is 44727104.

40172744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40170244 + 2500 = 6338^2 + 50^2 .

It is a super-2 number, since 2×40172744² = 3227698720979072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40172749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25109 + ... + 26660.

Almost surely, 2^40172744 is an apocalyptic number.

It is an amenable number.

40172744 is a deficient number, since it is larger than the sum of its proper divisors (35929156).

40172744 is a wasteful number, since it uses less digits than its factorization.

40172744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51872 (or 51868 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 40172744 is about 6338.1972200303. The cubic root of 40172744 is about 342.4867958040.

Adding to 40172744 its reverse (44727104), we get a palindrome (84899848).

The spelling of 40172744 in words is "forty million, one hundred seventy-two thousand, seven hundred forty-four".